speed of sound in water is 4.3 times the speed of sound in air. A whistle produces a sound wave in air with a frequency $\mathrm{f}_{0}$. When this sound wave enters the water, its frequency will be
A) $\mathrm{f}_{0} / 4.3$.
B) $4.3 \mathrm{f}_{0}$.
C) $\mathrm{f}_{0}$.
D) not enough information

Question

Quizplus · Accepted Answer

The frequency of a sound wave does not change when it moves from one medium to another; only its speed and wavelength change.

Speed of Sound in Water Is 4 f0\mathrm{f}_{0}f0​ When This Sound Wave Enters the Water, Its Frequency

Speed of Sound in Water Is 4 $\mathrm{f}_{0}$ When This Sound Wave Enters the Water, Its Frequency